iaas_enumerate_vcf_regions_async

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=false and openWorldHint=true, so the safety profile is partly covered. The description adds nothing beyond the raw endpoint: it does not disclose that credentials (including passwords) are submitted in the body, that the operation is asynchronous, or how long results persist. As a mutation-flagged, outbound-calling tool with no output schema, this is thin.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two compact lines with the operation stated first and the HTTP path second. No wasted prose, though the path line largely duplicates the annotation title.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For an asynchronous enumeration tool with a 15-field nested credential body and no output schema, the description should explain the follow-up result retrieval and what is returned (a request tracker). Neither is present, leaving a substantive gap in how an agent completes the task.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and every body field, including the nested certificate object, is documented by the schema itself. The description adds no parameter meaning, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource: retrieve available regions for a VCF cloud account, plus the exact endpoint. It is distinguishable from the many sibling enumerate_*_regions tools by the VCF qualifier, though the description never explicitly contrasts itself with iaas_enumerate_regions_async or iaas_get_region_enumeration_result.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this versus other region-enumeration endpoints, and no mention of the async contract — an agent is not told that the call only kicks off enumeration and that results must be fetched via iaas_get_region_enumeration_result. Prerequisites (existing cloudAccountId vs. full vCenter/NSX credential set) are only implied through schema text.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.